The OWC Envoy Pro combines elegance and functionality for sleek, portable external storage that complements the design and finish of the MacBook Pro with Retina display. Its aluminum body protects your drive and data, while its minimal size allows for simple stowing in coat pockets, backpacks or briefcases.The USB 3.0 interface offers speedy transfer rates of up to 500MB/s and the Envoy Pro requires no AC power adapter making it the ideal Plug and Play USB bus-powered* SSD Enclosure.- read speed of 625 Mb/s and a write speed of 4x, this unit provides reliable and fast storage for your data- The unit supports external SSD drive types and has a storage capacity of 64 GB, making it suitable for various storage needs. It also comes with a 1-year manufacturer warranty and has a USB-A interface for easy connectivity. The item dimensions are 2.1 x 4.5 x 0.4 inches and it weighs 0.46 pounds. This portable storage device is perfect for those who require reliable and fast storage on-the-go.